Sansom, George Bailey, Sir, 1883-1965, author
The Creasst Press, 1950
Buku Teks
Viorst, Milton, author
Chilton Book, 1965
Buku Teks
Utah , Salt Lake City : University of Utah Printing Service
Majalah, Jurnal, Buletin
Buku Teks
Burkholder, J. Peter, author
W.W. Norton, 2010
Buku Teks